Fuel-supply system for internal-combustion engines



G. W. HENNER.

FUEL SUPPLY SYSTEM FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED JAN-28,1918.

1,334,491 Patented Mar. 23, 1920.

HNVENTUH: 7% M GEORGE W. HIE-INNER, OF ROCHESTER, NEW YORK.

FUELS'UPPLY SYSTEM FORINTERNAL-COMBUSTION ENGINES.

' Specification of Letters Intent. 1 Patent d M3, gg 1921 Application filed January 28, 1918. Serial No. 214,202.

To all whom. it may concern;

Be it known that I, Gnonon W. Hnnnnn, a citizen of the United States, and resident of Rochester, in the county of Monroe and State of New York, have invented certain .new and useful Improvements in Fuel- Supply Systems for Internal-Combustion Engines, of which the following is a specification.

The present invention relates to fuel sup ply systems for internal combustion engines,

and more particularly to the type which employs kerosene, or some other low test hydrocarbon, as a fuel, an object of this invention being to provide a construction which will supply a second fuel such as gasolene, or other high test hydrocarbon, to the engine when the speed of the engine is reduced, or when starting the engine.

To this and other ends the invention consists of certain parts and combinations of parts all of which will be hereinafter described, the novel features being pointed out in the appended claims.

the drawings, thesingle figure is a view in elevation of an internal explosion engine embodying the present system, parts bem shown in section.

Wltll. the increased cost of gasolene the necessity of using some other fuel has become important. It has been suggested to use kerosene and, in fact, engines have been bu1lt with means for utilizing kerosene as the fuel, but it has been found that, after the speed of the engine lowers to a certain point, the engine becomes stalled, due to the fact that there is not sufiicient suction for drawing the kerosene into the engine-" According to this invention, an auxiliary fuel supply is employed which may be utilized for driving the engine at low speeds,

this auxiliary supply being preferably automatically controlled, so that it is not used on high speeds, provision also preferably being made for throwing the kerosene fuel supply into connection with the engine at will Referring more particularly to the drawings, 1 indicates an explosive'engine and 2 "the intake of the manifold of the engine, this intake opening preferably upwardly and having a conduit or passageway 3 connected thereto, said conduit having'two branches 4 and 5, at its upper end leading, respectively, to the kerosene carburetor or fuel the conduit 3, a throttle va vs 10 is arranged, and this valve is connected to a treadle 11 on the vehicle by a link 12 or other suitable means. In the branch 4 a pivoted valve 13 is arranged'to control the how of the fuel from the fuel mixer 6, While in the branch 5 a pivoted valve 14: is arranged to control the supply of fuel from the carbureter 7. r The valves 13 and, 14 have, respectively, crank arms15 and 16 which are pivotally connected to a rod 17 this rod in this instance having an extension 18 at one end pro ectingrearwardly, so as to be situated in a position where it may be controlled from the seat of the motor vehicle. The valves .13 and 14 are so arran ed and connected to the operating rod 1 that when one valve is opened, the other will be closed, or vice versa, the movement of the rod effecting the opening of one valve with the closing of the other.

Normally the rod 17 ma be held in one direction by a spring 19 which is connected atone end to the rod and at the other end to a fixed part. By this arrangement, the

valve which controls the fuel from the gasolene supply is normally held open, while the valve which controls the fuel from the kerosene supply is normally held closed. Any suitable means may be provided for locking the rod 18 in variously shifted positions, so as to either reverse the position of the valves, or to hold both of them open, so as to obtain more gasolene fuel than kerosene fuel, or vice versa. In this instance, a rack 18 is provided on the rod for engagement with a dog 18 on a stationary part.

7 The automatic control of the valves may be effected by a centrifugal speed governor 20-of any suitable type geared to the engine so as to be driven thereby, and "connected to the valve. In this instance, the connection embodies a lever 21 pivoted to a fixed part asat 22 and havin the governor connected thereto as at 23, t e upper end of this lever having a pin 24 operating in a slot 25 formed in the rod 17. i This slot is pro vided in order that the rod may have a lost motion connection with the governor and in this wa may be shifted or moved independent y of the vernor, to provide for the manual contro of the valve. The pin 24- may be spaced slightly from the outer end of the slot in order that the governor will not act upon the valves until the engine has attained a certain speed.

In the operation of the invention, the engine is started on the fuel from the gasolene supply, the partsbeing in the positions shown in the drawings. Up to a certain s eed the'engine will operate under the inuence of fuel from the gasolene supply, but when the speed controller or. governor shifts the lever 21, so that the pin engages the ball of the outer end of the slot 25, the rod 17 will be shifted to close the valve controlling the fuel from the gasolene su ply and to open the valve controlling the uel from the kerosene supply. The greater becomes the speed of the engine the more the gasolene supply will be cut off, and the more the kerosene supply will be opened, so that eventuall the gasolene will be entirely out off and t e engine will travel solely under the influence of the fuel from the kerosene supply.

rom the foregoin it will be seen that there has been provi ed a fuel supply system in which it is possible to use kerosene or similar low grade fuel on high speed. and to employ gasolene or high grade fuel on low speed and for starting purposes. In this way it is possible to reduce the fuel cost inrunning explosive engines while at the same making it possible to run such engine at slow as well as high speeds.

What I claim as my invention and desire to secure by Letters Patent is v '1. In combination with an internal combustion engine, 'two fuel supplies each having its own carburetor, one of which is normally open to the engine and the other of which is normally closed, automatically operated means for cutting out the sup ly from the first named carburetor and cutting in the supply from the second named carbureter, and means under the control of the operator for rendering the automatic-means inoperative. v

2. In combination with an internal combustion engine, two fuel supplies each having its own cabureter, one of which is normall open to the engine and the other of 'whic is normally closed, a speed governor for cutting out the supply from the first carbureter and cutting in the supply from the second carburetor, and means under the control of the operator for rendering said speed governor inoperative.

3. In combination with an internal combustion engine, two fuel supplies each having its own carburetor, one of which is normall open to the engine. and the other of. which is normally closed, automatically operated means for cutting out the fuel supply from the first carbureter and cutting m the fuel supply from the second carbureter,

said automatically operated means having a lost motion connection therein permitting the control of the flow from the two carbureters independently of said automatically operated means, and means under the control of the operator for controllin the flow from the carbureters independent y of the automatically operated means.

4. In combination with an internal combustion engine, a gasolene su ply and a kerosene supply; a conduit leading from both supplies to the engine; twovalves, one controlling the fuel from the gasolene supply and the other controlling the fuel from the kerosene supply; and a speed governor connected to t e two valves for effecting the closing of the one controlling the fuel from the gasolene supply upon the opening of the one controlling the fuel from the kerosene supply and vice versa.

5. In combination with an internal combustion engine, a gasolene supply and a kerosene supply; a conduit leading from both supplies to the en 'ne; two valves, one controlling the fuel om the gasolene su ply and the other controlling the fuel rom the kerosene supply; a speed governor connected to the two valves for effecting the closing of the one controlling the fuel from the gasolene supply u on the opening of the one controlling the uel from the kerosene supply and vice versa; and a common controllmg means under the control of the operative for controlling said valves independently of the speed governor.

6. In combination with an internal combustion engine, a gasolene supply and a, kerosene supply; a conduit leading from both supplies to the engine; two valves, one controlling the fuel from the gasolene supply and the other controlling the fuel from the kerosene supply; a speed governor connected to the two valves for eflecting the closing of the one controlling the fuel from the gasolene supply upon the opening of the one controlling the fuel from the kerosene supply and vice versa; and a common controlling means under the control of the operative for controlling said valves independently of the speed governor, said valves having a lost motion connection with the speed governor to permit the operation of the valves independently of the speed governor.

7. In combination with an internal combustion engine, two fuel supplies, two valves, one for controlling each fuel supply, automatic means connected to the two valves for efl'ectin the closing of one upon the opening 0 the other, and a common means under the control of the o erator for controlling said valves indepen ently of'the automatic means.

8. In combination with an internal combustion engine, two fuel supplies, tWo valves one for controlling each fuel supply, auto matic means connected to the two valves 5 for elfecting the closing of one upon the opening of the other, and a common means under the control of the operator for controlling said valves independently of the automatic means, said valves having a lost motion connection with the automatic means 10 to permit the operation of the valves independently of said automatic means.

GEORGE W. HEN NER. 

